/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Public/OnlineBeaconHost.h
Start verifying an authentication token for a connection. OnAuthenticationVerificationComplete must be called to complete authentication verification.
virtual bool StartVerifyAuthentication ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & PlayerId, const [FString](API\Runtime\Core\Containers\FString) & AuthenticationToken, const [FOnAuthenticationVerificationCompleteDelegate](API\Plugins\OnlineSubsystemUtils\AOnlineBeaconHost\FOnAuthenticatio-) & OnComplete )